Internal-combustion engine.



J. 8-. BROWN. mmw/u comsusnom ENGINE. APPLICATION FILED DEC. 3. 1913.

3 SHEETSSHEET l- INVENTOR Patented Nov. 20, 191?.

WITNESSES:

ATTORNEYS Patented Nov, 20, 1917.

3 SHEETSP-SHEET 2.

INVENTOR.

WITNESSES .A TTORNEYS.

J. 8. BROWN. INTERNAL COMBUSTION ENGINE. APPLICATION man 0120.3, 1913.

Patented Nov. 20, 191?.

3 SHEETS-SHEET 3.

I F I m {II/ 10m k WITNESSES: m INVENTOR.

A TTORNEYS,-

JULIAN s. BROWN, or SYRACUSE, new YonK.

INTERNAL-COMBUSTION ENGINE.

Specification of Letters Eatent.

Patented Nov. 211, 1991?.

Application filed December 3, 1913. Serial No. 804,453.

To all whom it may concern:

Be it known that I, JULIAN S. Bnown, a citizen of the United States, and a resident of Syracuse, in the county of Onondaga and State of New York, have invented a certain new and useful InteniaLCombustion Engine, of which the following is a specification. 7

This invention relates to rotary valve mechanism for internal combustion engines, and particularly to means whereby the rotary valve is rendered gas tight and to arrangements by which the valve is balanced; and the invention consists in the novel combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawings, in which like characters designate corresponding parts in all the views.

Figure 1 is a vertical cross-sectional view of an engine embodying my invention,

Fig. 2 is a longitudinal sectional view, partly in elevation thereof. a

Fig. 3 is a horizontal longitudinal. sectional view, partly in elevation, of this en- Figs. 4 and 5 are detail views of one of the packing rings and the spring therefor, which make the valve gas tight.

This internal combustion engine comprises, generally, a cylinder, a valve casing associated with the cylinder and having a cylindrical valve chamber and a passage communicating with the cylinder and having a port opening into the chamber, a rotary valve in the chamber, the valve having a port for registering with the first mentioned port, and means around the first mentioned port and engaging the periphery of the valve for making the valve gas tight. The invention also preferably includes two passages communicating with the cylinder and having ports opening into the valve chamber at diametrical sides thereof, or a passage opening into the cylinder between its ends and having portsat its opposite ends opening diametrically opposite each other into the valve chamber whereby the force of the explosion in the cylinder is transferred equally on opposite sides of the valve so that the valve is balanced.

I have here shown my invention as embodied in a multi-cylinder as a six-cylinder engine in which the cylinders are grouped in pairs, and the valve casing and the valve therein are common to all of the cylinders.

6 is the valve casing which here shown as mounted on the heads of the cylinders l and formed with a lengthwise cylindrical chamber 7 in which the rotary valve 8 is journaled, the casing also being formed with passages 9 having diametrically disposed ports 10 opening into the chamber 7, each passage 9 opening between its ends at 11 into one of the cylinders. 9 are preferably arranged concentric with the axis of the chamber 7.

The casing 6 is also provided with annular recesses 12 around the ports 10 concentric therewith, and packing rings 13 are located in the recesses and are pressed outwardly by springs 1 1 located at the bottoms of the recesses. These packingrings have concave edges 13, Fig. 1, which engage or wipe on the periphery of the valve 8 in order to prevent the escape of gas from the ports 10 around the periphery of the valve 8. The springs 141 are in the form of split disks, Fig. 5, formed with radial corruga tions which make the disks resilient and which bear on the rear edges of the disks at equidistant points.

The casing also preferably includes removable plugs 15 located on opposite sides thereof in which are formed portions 16 of the passages 9, the portions 16 connecting the major parts of the passages 9 with the ports 10 thereof so that upon the removal of the plugs 15 the major parts of the pa?- sage 9 and the ports 10 are readily accessible. The plugs 15 are held in position to the major part of the casing by cap screws 18. The plugs 15 support spark plugs 19.

Suitable water jackets 20 surround the valve casing and each pair of cylinders is also surrounded by a water jacket 21 common to the cylinders of each pair. The casing 6 is closed at its opposite ends by end pieces 22, 23. i

The valve 8- is formed with a lengthwise partition 24 forming a passage 25 extending the entire length thereof and common to all the cylinders and with ports 26 leading from the passage 25 for communicating with the ports 10, the ports 26 being arranged out of alinement or staggered or any other suitable manner in accordance with the The passages 7 exhaust ports 32 for registering with the ports 10, each pair of ports 32 and 26 being arranged to register successively with each port 10 leading to each cylinder 1. The exhaust passages 31 for each pair of cylinders communicates with a peripheral annular channel 33 in the valve, there being a channel 33 between each pair of cylinders, and the casing is formed with exhaust passages 34 communicating with the channels 32 and opening through the outer face of the casing for connection with the exhaust yoke or pipe.

The inlet passage and exhaust passages may be reversed, that is, the inlet may be used for the exhaust and the exhaust for the inlet, but the described arrangement is preferable as the incoming charge can more readily cool the valve, and the exhaust gases are taken from the valve as quickly as possible.

The valve 8 is rotated in any suitable manner from the crank shaft and is here shown as provided with a spiral gear 35 meshing with the spiral gear 36 on a vertically extending shaft 37 having a spiral gear 38 at its lower end which meshes with the spiral gear 39 on the crank shaft.

In operation, the charge is drawn into the valve 8 through opposite ends thereof and when one or more of the ports 26 register with one .or the other of the pair of ports 10, the charge enters the corresponding cylinder or cylinders, and upon being exploded, the force of the explosion is trans mitted, through both ports 10 so that the force of the explosion is transmitted equally to diametrically opposite sides of the valve and hence the valve is balanced. When each piston is on its scavenging stroke, the port 32 registers with one or the other of the ports a 10 permittingthe exhaust gases to escape through the passages 31 and into one of the annular channels 33, and thence through the exhaust passages 3 1 to the exhaust pipe. The ports 10 are rendered gas tight by reason of the packing'rings 14.

What I claim is: g

1. In a multi-cylinder internal combustion Copies of this patent may be obtained for and the adjacent end wall of the casing,

an intake passage communicating'with said chamber, and the casing having a passage leading to the cylinder and ports'for registering with said passages during rotation of the valve, the casing also having an exhaust passage communicating with the annular exhaust channel of the valve, substantially as and for the purpose set forth.

2. In an internal combustion engine, a cylinder, a valve casing mounted on the head of the cylinder and having a cylindrical chamber, and a passage communicating with the cylinder, the passage including a port opening into said chamber, the casing also including a removable plug through a portion of which the passage extends, a spark plug supported by the first-mentioned plug, and a rotary valve journaled inthe.

chamber of the casing and having ports for registering with the first-mentioned ports, substantially as and for the purpose specified.

3. In an internal combustion engine, a cylinder, a valve casing mounted on the cylinder and having a cylindrical valve chamber, and a passage extending laterally from the valve chamber and opening through the outer surface of the casing, said passage also communicating. with the cylinder and said passage including a port opening into the valve chamber, the casing being also formed with aplug placeable in and removable from the passage through the portion thereof opening through the outer face of the valve casing, and a rotary valve 1ournaled in the valve chamber and having ports for registering with the first-menw tioned ports, substantially as and for the purpose described.

In testimony whereof, Ihave hereunto signed my name in the presence of two attesting witnesses, at Syracuse, in the. county of Onondaga,- in the State of New York, this 19th day of November, 1913.

JULIAN S. BROWN.

WVitnesses S. DAVIS, Grins. H. YOUNG.

five cents each, by addressing the Commissioner of Patents, Washington, D. C. t i 

